package com.atguigu.java1;

public class ValueTransferTest2 {
		public static void main(String[] args) {
				
				Data data = new Data();
				
				data.m = 10;
				data.n = 20;
				System.out.println("m =" + data.m + ", n =" + data.n);
				
				ValueTransferTest2 test = new ValueTransferTest2();
				test.swap(data);
				
				System.out.println("m =" + data.m + ", n =" + data.n);
		}
		
		public void swap(Data data){
				int temp = data.m;
				data.m = data.n;
				data.n = temp;
		}
}

class Data{
		int m;
		int n;
}